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Unit Test

Unit testing with Wicket is done by mocking the application. This means that you do not have a webserver running. This section will be about how to get started using unit testing with Wicket's testing framework.

Simple example

public class AgencyPageTest extends TestCase {

    public void testBasicRender() {
         WicketTester tester=new WicketTester();
         tester.startPage(myPage.class);
         tester.assertRenderedPage(myPage.class);
	}
}

Above example makes sure that your page can render. This in itself is a very powerful test & and should be the minimum of tests on all your pages (in this author's opinion).

Basic Test Case for some labels and elements ... 

/**
 * 
 * <p>
 * Note : This is a TestNG Test case, a JUNIT 4.x implementation should be similiar to do.
 * For more on testNG refer to <a href="http://testng.org/doc/">TestNG</a>.
 * Also, note that i have kept the underneath stuff to minimal logic, but more 
 * to show what the framework testing is like ...
 * </p>
 * 
 * Code for Actor Panel below is :<br/>
 * 
 * <code><br/>
 * public ActorPanel(String id) {<br/>
 *		super(id);<br/>
 *
 * // add actor name<br/>
 *	add(new Label("actorId", "" + getActorData().getId()));<br/>
 *	add(new Label("actorName", getActorData().getActorName()));<br/>
 *	add(new Label("actorDepartment", getActorData().getDepartment()));<br/>
 *	add(new DropDownChoice("department", Arrays.<String>asList("HR","IS","FINANCE/ACCOUNTING")));<br/>
 *}<br/>
 * </code>
 * 
 * In HomePage class you do a simple add(new ActorPanel());<br/>
 * 
 * 
 * @author Vyas, Anirudh
 * 
 */
public class HomePageTest {
	
	public WicketTester wicketTester = null;
	
	/**
	 * Basic Setup of our test 
	 */
	@BeforeClass
	public void testSetup(){
		wicketTester  = new WicketTester();  // <-- A utility inside Wicket Framework for testing ...
		wicketTester.startPage(HomePage.class); // <--- You dont have to start a web server to test your stuff because of this ... bye bye HTMLUnit =)
		
	}
	
	/**
	 * Basic Home Page Test case for our application...
	 */
	@Test
	public void testHomePage(){

		
		// $Id - Test Case 1.0 : ... is Home Page rendered?
		wicketTester.assertRenderedPage(HomePage.class); 
		
		// $Id - Test Case 2.0 : Elements test cases ... ( Starts the Panel ... prepares a DummyPanel first for testing ).
		wicketTester.startPanel(ActorPanel.class);
		System.out.println(wicketTester.getApplication().getHomePage());

		//$Id - Assertion ( Element - Label - actorDepartment ) --> Not Null
		Assert.assertNotNull(wicketTester.getTagByWicketId("actorDepartment").getValue());
		
		//$Id - Assertion ( Element - Label - actorDepartment ) --> Same as "HR" 
		Assert.assertEquals(wicketTester.getTagByWicketId("actorDepartment").getValue(), "HR");

		//$Id - Assertion ( Element - Label - actorName ) --> Not Null
		Assert.assertNotNull(wicketTester.getTagByWicketId("actorName").getValue());
		
		// $Id - Assertion( Element - Label - actorName ) --> Same as "|| OM Gam Ganapataye Namaha ||"
		Assert.assertEquals(wicketTester.getTagByWicketId("actorName").getValue(), "|| OM Gam Ganapataye Namaha ||");

		//$Id - Assertion ( Element - DropdownChoice (select) - department ) --> Not Null 
		Assert.assertNotNull(wicketTester.getTagByWicketId("department").getValue());
		System.out.println("pane:department (component name is preceeded by panel ... as you might notice  ----- > " + wicketTester.getComponentFromLastRenderedPage("panel:department"));
		
	}

}

More to follow ...

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